Quoted from Concretehardt:
I talked to Chas yesterday he told me they have several cabinet manufacturers that they buy from, one of their cab suppliers was doing something different and only cabs from that Manufacture have an intermittent issue. Stern is aware of the issue and know where the cabs were coming from. It sounds like they have taken steps to correct the issue with the MFG. one last note I was worried that if I did the Williams brackets in my games and still had a problem that it would potentially void my warranty, Chas told me he/Stern was fine with it if I wanted to install the Williams brackets. Chas says his big headache is not a random cabinet failure it’s people putting 6 and 12 way power splitters on their games and frying something then calling him to sort it out.
Did Chaz advise which manufacturer is the culprit and if there is a way to identify if you have a potentially bad cab?